Abstract: The CFG pile composite foundation deformation of a high-rise building is calculated by three recommends methods form three diferent code in Xi'an,and through the contrastive analysis of the calculated values and measured values,the applicability of different calculation methods and the reasonable values of settlement calculation experience coefficient were discussed,put forward the suitability of the CFG pile composite foundation in the high-rise buildings of the region,the deformation calculation method is proposed to the pre-design stage.